scholarly journals Effectiveness of artificial diet enriched by spinach extract on molting stimulation to produce soft shell crab

2011 ◽  
Vol 10 (1) ◽  
pp. 8 ◽  
Author(s):  
Siti Aslamyah ◽  
Yushinta Fujaya
Keyword(s):  
Corn Starch ◽  
Soy Flour ◽  
Feed Formulation ◽  
Weight Growth ◽  
Spinach Extract ◽  
High Protein Concentration ◽  
Feed Control ◽  
Trash Fish ◽  
Soft Shell ◽  
Media Applications

<p>Artificial feed is an alternative media applications spinach extract (EB) that is known to contain molting stimulant. However, utilization of the artificial feed is related to its expensive cost, with a very high protein concentration since it's mainly produced from fish based materials, so need to be studied artificial feed formulation with substitution of vegetable material in stimulating molting and growth of mud crabs. Four formula artificial feed enriched EB (700 ng/g crab) used in this study were feed A (fish, crab shells, and cassava), feed B (fish, silage, shell crab, and cassava), feed C (fish, silage, shell crab, soy flour, and cassava), and feed D (fish, silage, shell crab, soy flour, corn starch, and pollard), trash fish and feed A without EB as control. During the test, mud crab intermolt phase was culture individually in crab box placed in pond. The results showed that the percentage of molting and weight growth in their respective in the feed A (44% and 41.96%); feed B (56% and 31.57%); feed C (74% and 23.20%); feed D (50% and 39.15%); trash feed control (24% and 50.66%); and feed A without EB (28% and 35.11%). An opposite phenomenon, where the feed C with the highest percentage of molting but with the lowest growth rate, the opposite occurs in the control of trash feed. This is apparently the effect of spinach extract as a stimulant molting, where performance can be optimized with a complete and balance nutrient composition. This prediction is supported by the analysis of protein content of crabs tested at the highest feed C treatment compared with the control feed.</p> <p>Key words: spinach extract, soft shell crab, molting, artificial feed, growth</p> <p> </p> <p>ABSTRAK</p> <p>Pakan buatan merupakan alternatif media aplikasi ekstrak bayam (EB) yang diketahui mengandung stimulan <em>molting</em>.  Namun demikian, pakan buatan yang digunakan masih mahal dengan kandungan protein yang tinggi, karena berbahan dasar ikan, sehingga perlu dikaji formulasi pakan buatan dengan subtitusi berbagai bahan nabati  dalam menstimulasi <em>molting</em> dan pertumbuhan kepiting bakau.  Empat formula pakan buatan yang diperkaya EB (700 ng/g kepiting) digunakan pada penelitan ini, yaitu Pakan A (ikan, cangkang kepiting, dan ubi), Pakan B (ikan, silase, cangkang kepiting, dan ubi), Pakan C (ikan, silase, cangkang kepiting, tepung kedelai, dan ubi), dan Pakan D (ikan, silase, cangkang kepiting, tepung kedelai, tepung jagung, dan pollard). Pakan rucah dan pakan A tanpa EB digunakan sebagai kontrol.  Selama penelitian, kepiting bakau fase <em>intermolt</em> dipelihara secara individu dalam <em>crab box</em> yang diletakkan di tambak. Hasil penelitian menunjukkan persentase <em>molting</em> dan pertumbuhan bobot masing-masing pada Pakan A (44% dan 41,96%); Pakan B (56% dan 31,57%); Pakan C (74% dan 23,20%); Pakan D (50% dan 39,15%); kontrol pakan rucah (24% dan 50,66%); dan  pakan A tanpa EB (28% dan 35,11%).  Terjadi anomali, yaitu Pakan C dengan persentase <em>molting</em> tertinggi, tetapi dengan tingkat pertumbuhan terendah, namun terjadi sebaliknya pada kontrol pakan rucah. Hal ini diduga efek dari ekstrak bayam sebagai stimulan <em>molting</em>, dimana kinerjanya dapat dioptimumkan dengan komposisi nutrien lengkap dan seimbang.  Pendugaan ini didukung hasil analisis kadar protein kepiting uji pada perlakuan Pakan C tertinggi dibandingkan kontrol.</p> <p>Kata kunci:<em> </em>Ekstrak bayam, kepiting cangkang lunak, <em>molting</em>, pakan buatan, pertumbuhan</p>

scholarly journals Pembuatan pakan alami untuk pengembangan kepiting cangkang lunak di Desa Pulau Cawan Kecamatan Mandah kabupaten Indragiri Hilir

2020 ◽  
Vol 2 ◽  
pp. 386-392
Author(s):  
T. Ersti Yulika Sari ◽  
Usman Usman ◽  
Nur Asiah
Keyword(s):  
Added Value ◽  
Community Activities ◽  
Feed Manufacturing ◽  
Spinach Extract ◽  
Molting Process ◽  
Lime Water ◽  
Trash Fish ◽  
Soft Shell ◽  
Mangrove Crabs ◽  
Strongly Agree

Mud crabs are mangrove crabs that are cultivated and harvested when molting so that their shells become soft and easy to consume. The purpose of this activity is to increase people's income in Desa Pulau Cawan, Kecamatan Mandah, Kabupaten Indragiri Hilir, through soft shell crab cultivation by introducing environmentally friendly cultivation techniques, but it can produce added value in terms of improving the family's economy through soft-shell crab cultivation, one of which is training in making natural feed. This is based on information from farmers who have never received training on feed manufacturing. Through the foster village program, knowledge and technology are given about techniques for making natural feed from lime water and spinach extract as a substitute for vitamalt which is quite expensive. The methods used in the Community activities of the foster Village are lectures, discussions and direct practice with POKDAKAN, starting with the preparation of spinach extract, trash fish, lime water, mixing and drying. The results of the evaluation of the counseling participants showed that 24 participants had never known about making natural feed from lime water and spinach extract as soka crab feed. After participating in this training activity there was an increase of 86.96% in knowledge about how to make natural feed. The partner's assessment of the implementation of this activity is 52.17% strongly agree that this natural feed can be made independently; 52.17% strongly agree that giving lime water and spinach extract to the artificial feed mixture of trash fish has an effect on the acceleration of the molting process in crabs and does not affect the survival of crabs; 60.87% strongly agreed that it could be an alternative livelihood; strongly agree that the molting process in soft-shell crab cultivation is the same as when the crabs are given a vitamolt, which is 20 days.

scholarly journals Utilization of Trash Fish for Cultivation of Crablet Mud Crab (Scylla serrata)

2020 ◽  
Vol 25 (3) ◽  
pp. 110-114
Author(s):  
Heppi Iromo ◽  
Dori Rachmawani ◽  
Abdul Jabarsyah ◽  
Zainuddin Zainuddin
Keyword(s):  
Carapace Width ◽  
Survival Rates ◽  
Scylla Serrata ◽  
Mud Crab ◽  
Growth And Survival ◽  
Weight Growth ◽  
Randomized Design ◽  
Trichiurus Lepturus ◽  
Trash Fish ◽  
In The Wild

The high demand for mud crabs in North Kalimantan causes catch to increase in the wild. If it is not balanced with efforts to increase its aquaculture of mud crab, in the future there will be a decline in population. This study aims to determine the growth and survival rate of mud crab seed (crablet, Scylla serrata) in the application method of different types of trash fish. This research used a completely randomized design with 4 treatments and 3 replications. The Crablet used carapace width average 0.07-0.09 cm and weigh average 0.05-0.07 g with total 150 crablets. The treatments applied by trash fish were (A) Tilapia Fish (Oreochromis mossambicus), (B) Longfin Herrings Fish (Ilisha elongata), (C) Sword Fish (Trichiurus lepturus) and (D) Snails (Telescopium telescopium). The results were The best weight growth of crablet occurs in the treatment of T. lepturus (P>0.05) and  the highest of survival rates of crablet were found in treatment T. telescopium (P<0.05)  than the other. The trash fish were used turned out to be able survival of crablet mud crab (Scylla serrata).

scholarly journals Lack of interactive effects between diet composition and acid addition with drying method on amino acid digestibility values in porcine ileal digesta

2020 ◽  
Vol 98 (2) ◽  
Author(s):  
Brian J Kerr ◽  
Shelby M Curry ◽  
Brett C Ramirez
Keyword(s):  
Soybean Meal ◽  
Corn Starch ◽  
Potato Starch ◽  
Interactive Effects ◽  
Drying Method ◽  
Ileal Digestibility ◽  
Feed Formulation ◽  
Bias Factor ◽  
Forced Air ◽  
Ph Level

Abstract Two experiments were conducted to determine the effect of oven drying (OD) or freeze drying (FD) on apparent ileal digestibility (AID) of AA in diets fed to pigs. In experiment 1, 15 barrows (88.4 ± 6.4 kg) were allotted to either a corn starch–soybean meal (CST), potato starch–soybean meal (PST), or corn–soybean meal (CSBM) diet, over 2 collection periods. Following collection, samples were pooled within pig and subdivided into either OD or FD, resulting in 10 observations per diet by drying-method combination. In experiment 2, 11 barrows (63.3 ± 3.8 kg) were fed a CST diet, and, following collection, samples were pooled within pig and subdivided and either adjusted to pH 4 or remain unadjusted. Subsets of these samples were then subdivided to be either FD or OD, resulting in 11 observations per pH level by drying-method combination. OD was accomplished by drying samples in a forced air oven at either 100 °C (experiment 1) or 75 °C (experiment 2). In experiment 1, there was no diet type by drying-method interactions noted for any of the AA (P &gt; 0.10).OD resulted in a higher AID of AA compared with samples which were FD (P ≤ 0.10), for all AA except for Gly and Tyr. Averaged across all AA, AID of AA was 3.3% greater if the sample was OD compared with FD. Differences in AID of AA among the 3 diets were noted for all AA (P ≤ 0.07), except for Cys (P = 0.33), due to the fact that CST and PST diets only contained soybean meal (SBM) as an AA-providing ingredient while the CSBM diet contained both corn and SBM. Pigs fed the PST diet had greater SID for all AA compared with pigs fed the CST diet (P ≤ 0.05), except for His, Lys, Cys, and Glu. In experiment 2, there were no pH-adjustment by drying-method interactions noted on AID for any of the AA (P &gt; 0.10). Adjusting ileal digesta to a pH of 4.0 had little effect on AID for most of the AA, except for a lowered AID of Arg, His, Lys, Trp, and Ser (P ≤ 0.10). OD resulted in a higher AID for all AA (P ≤ 0.09) except for Ile, Thr, Val, Ala, Asp, Glu, and Gly. Averaged across all AA, the increase in AID of AA was 1.7% greater if the sample was OD compared with FD. On average, OD of ileal digesta resulted in a 2.5% greater estimate of AID of AA compared with samples that were FD, and was not diet-, pH-, or AA-dependent. Because the majority of the data on AA digestibility are based on FD, a bias factor may be necessary to adjust AA digestibility data obtained on an OD-basis relative to an FD-basis for use in feed formulation.

scholarly journals THE STUDY OF RICE EEL FARMING (MONOPTERUS ALBUS) IN THE RECIRCULATION SYSTEM

2019 ◽  
Vol 1 (27) ◽  
pp. 86-94
Author(s):  
Son Phuoc Lai
Keyword(s):  
Average Length ◽  
Conversion Ratio ◽  
Feed Conversion Ratio ◽  
Control Treatment ◽  
Suitable Model ◽  
Feed Conversion ◽  
Monopterus Albus ◽  
Weight Growth ◽  
Trash Fish ◽  
Recirculation System

The study of rice eel farming (Monopterus albus Zuiew, 1793) in the recirculation system is to find out a suitable model for rice eel growth and contribute to responding to climate change. The average length and weight  of the rice eels were 22.28 ± 0.21 cm/inds and 14.65 ± 0.48 g/inds, respectively. The experiment was conducted with two treatments: the control treatment and the recirculation treatment; each of them was repeated 3 times in 180 days. Rice eel was fed with 80% fresh trash fish and 20% pelleted pellets with 30% protein. The results showed that the environmental factors such as temperature, pH, N-NH3-, N-NO2- and alkalinity were in suitable range for rice eel growth during the experiment. The survival rate was not different between the two treatments. Weight growth rate in the recirculation system (97.70 ± 9.04 g/inds) was higher than the control (80.67 ± 0.16 g/inds) (p<0,05). Feed conversion ratio (FCR) in two treatments was not different with 2.49 ± 0.05% and 2.41 ± 0.22%. The amount of water was added in recirculation system (3.12 m3/tank) during 180 days only 1/10 compared with thecontrol (32.8 m3/tank). These results showed that the recirculation system was perfectly suited for the growth and development of rice eel.

scholarly journals EFFECT OF PLANTS MEAL FROM Eeichhornia crassipes AND Salvinia molesta ON GROWTH OF Pangasius sp.

2020 ◽  
Vol 9 (1) ◽  
pp. 1067
Author(s):  
Retno Cahya Mukti ◽  
Ria Octaviani
Keyword(s):  
Growth Rate ◽  
Specific Growth Rate ◽  
Eichhornia Crassipes ◽  
Specific Growth ◽  
Salvinia Molesta ◽  
Recommended Treatment ◽  
Weight Growth ◽  
Alternative Ingredients ◽  
Commercial Feed ◽  
Feed Control

Plant meals from Eichhornia crassipes and Salvinia molesta can be used as alternative ingredients for feed in aquaculture. The purpose of this study was to determine the effect of the use of plant meals as a feed on the growth of Pangasius. The experimental designed consist of three treatments and triplicates: P0: commercial feed (control); P1: feed with the addition of 25% Eichhornia crassipes; P2: feed with the addition of 25% Salvinia molesta. The results showed that plant meals in feed showed significantly different results on the growth of body weight, specific growth rate, and efficiency of Pangasius feed. The recommended treatment was the addition of Salvinia molesta  with a weight growth value of 3.84 g, a specific growth rate of 2.07%, and feed efficiency of 59.96%.

scholarly journals Substitution of natural feed with artificial feed on the survival rate and growth rate of giant-snakehead Channa micropeltes

2021 ◽  
Vol 20 (2) ◽  
pp. 174-180
Author(s):  
Sarmila ◽  
Susilawati Susilawati ◽  
Sri Warastuti
Keyword(s):  
Growth Rate ◽  
Survival Rate ◽  
Specific Growth ◽  
Control Treatment ◽  
Growth And Survival ◽  
Weight Growth ◽  
Randomized Design ◽  
Trash Fish ◽  
Completely Randomized Design ◽  
And Control

The purpose of this study was to determine the best percentage of artificial feed substitution for growth and survival rate of giant-snakehead. This study used a completely randomized design (CRD) with 4 levels of artificial feed substitution dose treatment, namely 25%, 50%, 75%, 100%, and control (without artificial substitution). The feed used in the form of fresh trash fish mixed with artificial feed FF-999 with a protein content of 35%. The results showed that the control treatment (100% trash fish) gave the best survival rate and spesific growth rate of 75% and 2.12%/day, respectively. Meanwhile, the percentage of artificial feed substitution treatment which gave the best survival rate and specific growth rate was found in the substitution percentage treatment of 25% artificial feed with a survival rate of 66.67% and a daily weight growth rate of 1.89%/day. Substitution of 100% artificial feed caused death with a 0% survival rate. Keywords: artificial feed, feed substitution, giant-snakehead, survival rate, growth ABSTRAK Penelitian ini bertujuan menentukan persentase substitusi pakan buatan yang terbaik untuk laju pertumbuhan, dan tingkat kelangsungan hidup ikan toman. Penelitian ini menggunakan rancangan acak lengkap (RAL) dengan perlakuan 4 level dosis substitusi pakan buatan yaitu 25%, 50%, 75% dan 100% serta 1 kontrol (tanpa substitusi pakan buatan). Pakan yang digunakan berupa ikan rucah segar dicampur dengan pakan buatan berupa pellet dengan merk FF-999 berkadar protein 35%. Hasil penelitian menunjukkan bahwa perlakuan kontrol (100% ikan rucah) memberikan tingkat kelangsungan hidup dan laju pertumbuhan berat harian terbaik masing-masing sebesar 75% dan 2.12%/hari. Sementara untuk perlakuan persentase substitusi pakan buatan yang memberikan tingkat kelangsungan hidup dan laju pertumbuhan terbaik terdapat pada perlakuan persentase substitusi sebesar 25% pakan buatan dengan tingkat kelangsungan hidup 66.67% dan laju pertumbuhan berat harian 1.89%/hari. Substitusi 100% pakan buatan menyebabkan kematian dengan tingkat kelangsungan hidup 0%. Kata kunci: ikan toman, kelangsungan hidup, laju pertumbuhan, pakan buatan, substitusi pakan.

Changes of steroidogenesis subject to weight growth

2013 ◽  
Author(s):  
Hana Pospišilova ◽  
Michaela Duškova ◽  
Martin Hill ◽  
Luboslav Horak
Keyword(s):  
Weight Growth
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